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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qplatformdefs.h"
#include "qurl.h"
#include "private/qdataurl_p.h"
QT_BEGIN_NAMESPACE
/*!
\internal
Decode a data: URL into its mimetype and payload. Returns a null string if
the URL could not be decoded.
*/
Q_CORE_EXPORT QPair<QString, QByteArray> qDecodeDataUrl(const QUrl &uri)
{
QString mimeType;
QByteArray payload;
if (uri.scheme() == QLatin1String("data") && uri.host().isEmpty()) {
mimeType = QLatin1String("text/plain;charset=US-ASCII");
// the following would have been the correct thing, but
// reality often differs from the specification. People have
// data: URIs with ? and #
//QByteArray data = QByteArray::fromPercentEncoding(uri.encodedPath());
QByteArray data = QByteArray::fromPercentEncoding(uri.toEncoded());
// remove the data: scheme
data.remove(0, 5);
// parse it:
int pos = data.indexOf(',');
if (pos != -1) {
payload = data.mid(pos + 1);
data.truncate(pos);
data = data.trimmed();
// find out if the payload is encoded in Base64
if (data.endsWith(";base64")) {
payload = QByteArray::fromBase64(payload);
data.chop(7);
}
if (data.toLower().startsWith("charset")) {
int i = 7; // strlen("charset")
while (data.at(i) == ' ')
++i;
if (data.at(i) == '=')
data.prepend("text/plain;");
}
if (!data.isEmpty())
mimeType = QLatin1String(data.trimmed());
}
}
return QPair<QString,QByteArray>(mimeType,payload);
}
QT_END_NAMESPACE
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